I did an Archive & Install of Panther on an iMac DV SE 400 running Jaguar 10.2.8 (second version). I'd been running Eudora 6.0 in sponsored mode, and now it crashes every time it tries to send an e-mail. So long as it's not sending, it's fine -- it can fetch, I can browse mail, etc. But when it sends, Eudora unexepectedly quits. I'm not that heartbroken -- I've been meaning to transition over to Mail anyway, but I just thought I'd pass it along and see whether anyone else had a similar problem. I've submitted a bug report to Apple (I like that new crash window that comes up), but not Qualcomm (because I can't send e-mail). FWIW, I had a clean install of Jaguar done just a couple of months ago when my old hard drive gave up the ghost, then did clean installs of all my other software, so there shouldn't be a lot of cruft on my system.